Earth's History

Which layer is the oldest?

• 3
• 4
• 1
• 5

Tags

NGSS.MS-ESS1-4

Trilobites are found in the _____________.

• Cenozoic
• Mesozoic
• Paleozoic
• Cretaceous

Tags

NGSS.MS-LS4-1

What occurs at the end of a geologic era?

• flood
• extinction
• comet
• mountains form

Tags

NGSS.MS-ESS1-4

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4

Which best describes a fossil that helps determine the relative age of a rock layer?

• trace fossil
• index fossil
• radioactive fossil
• unconformity fossil

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which method would be BEST for scientists to use to determine the absolute age of a Precambrian igneous rock?

• Index fossils

• law of superosition

• radiometric dating

• law of original horizontality

How are fossils created?

• Traces of organisms get turned into stone.
• Dead organisms are quickly buried for millions of years.
• Animals get trapped.
• All of the above

Which parts of an organism are more likely to fossilize?

• the soft parts - skin, muscle
• the hard parts - bones, shells, stems
• all parts can become fossilized easily because the organism becomes buried by sediments

Fossils can provide evidence of how life has changed over time, how Earth's surface has changed, and clues about what past environments were like.

• True
• False

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1